Getting PHP Error

When enabling the plugin I am getting these errors when visiting a page on frontend:

AH01071: Got error 'PHP message: PHP Warning: Trying to access array offset on value of type null in /httpdocs/wp-content/plugins/cache-enabler/inc/cache_enabler.class.php 

l/httpdocs/wp-content/plugins/cache-enabler/inc/cache_enabler.class.php?on line 2196′, referer: site.nl/siteurl

Any one familiar with this?

• This topic was modified 9 months, 4 weeks ago by mistermeij.